Hello I have a 2005 W211 USA spec E320 CDI
I have had some help with disabling EGR and swirl valves and when I check in the SDS diagnostic system, the EGR is indeed off and stays off (SDS actually reads 5% but it is essentially off). However, when I accelerate at wide open throttle, the car goes into some kind of limp mode and feels like it has a severe lack of power. There are no DTCs reported and when I turn off the engine and turn on again, the car is back to normal. As soon as I accelerate at WOT again, the issue happens again. When I reflash the original ECU file, the issue goes away completely.
Does anyone have any thoughts on this? Thanks!
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